Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Lindsay Ann Underwood, ACNP

Individual provider Critical Care Medicine Nurse Practitioner · NPI 1861642530

MS. Lindsay Ann Underwood, ACNP is a Nurse Practitioner in Saint Louis, Missouri. Graduated from Saint Louis University School of Medicine in 2007, 19 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
19
Trained at
Saint Louis University School of Medicine
Licensed in
MO
In the registry since
2008
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

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Practice location Address checks out

1 Barnes Jewish Hospital Plz Div Neurology Critical Care Medicine
Saint Louis, MO 63110-1003
Phone: (314) 362-1408
Fax: (314) 362-6033
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine Nurse Practitioner (primary) Taxonomy 363LC0200X · Licence 2003017503 (MO)

Record details

NPI number1861642530
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedSeptember 30, 2008
Last updated in NPPESNovember 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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